// Test the method directly
        char[] password1 = "testpassword".toCharArray();
        char[] password2 = "testpassword".toCharArray();
        char[] password3 = "testpassworX".toCharArray();

        Boolean result1 = (Boolean) constantTimeMethod.invoke(null, password1, password2);
        Boolean result2 = (Boolean) constantTimeMethod.invoke(null, password1, password3);

        NtlmPasswordAuthenticator auth2 = new NtlmPasswordAuthenticator("DOMAIN", "user", password2);
        NtlmPasswordAuthenticator auth3 = new NtlmPasswordAuthenticator("DOMAIN", "user", password3);

        // Test equality with same password
        assertEquals(auth1, auth2);
        assertEquals(auth1.hashCode(), auth2.hashCode());

        // Test inequality with different password

        byte[] actual = NtlmUtil.getNTHash(password);

        // Assert
        assertArrayEquals(expected, actual, "NT hash must match known test vector");
    }

    @Test
    @DisplayName("getNTHash: verify different passwords produce different hashes")
    void testGetNTHash_differentPasswords() {
        // Arrange
        String password1 = "password";
        String password2 = "Password";

        // Act

            }

            println("Authenticating for response: $response")
            println("Challenges: ${response.challenges()}")
            val credential = Credentials.basic("jesse", "password1")
            return response.request
              .newBuilder()
              .header("Authorization", credential)
              .build()
          }
        },
      ).build()

  fun run() {

    private final String credentials;
    private final String host;

    BasicAuthInterceptor(String host, String username, String password) {
      this.credentials = Credentials.basic(username, password);
      this.host = host;
    }

    @Override public Response intercept(Chain chain) throws IOException {
      Request request = chain.request();

          }

          System.out.println("Authenticating for response: " + response);
          System.out.println("Challenges: " + response.challenges());
          String credential = Credentials.basic("jesse", "password1");
          return response.request().newBuilder()
              .header("Authorization", credential)
              .build();
        })
        .build();
  }

  public void run() throws Exception {

              }

              println("Authenticating for response: $response")
              println("Challenges: ${response.challenges()}")
              val credential = Credentials.basic("jesse", "password1")
              return response.request.newBuilder()
                  .header("Authorization", credential)
                  .build()
            }
          })
          .build()

      fun run() {

        .build(),
    )
    server.enqueue(MockResponse(body = "encrypted response from the origin server"))
    val credential = basic("jesse", "password1")
    client =
      client
        .newBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),
          handshakeCertificates.trustManager,
        ).proxy(server.proxyAddress)
        .hostnameVerifier(RecordingHostnameVerifier())

        // Verify it returns a clone, not the original
        password[0] = 'X';
        char[] password2 = authenticator.getPasswordAsCharArray();
        assertNotEquals(password[0], password2[0], "Should return a clone, not the original");
    }

    @Test
    public void testPasswordConstructorWithCharArray() {
        char[] passwordChars = "charArrayPassword".toCharArray();

# Einfaches OAuth2 mit Password und Bearer

Lassen Sie uns nun auf dem vorherigen Kapitel aufbauen und die fehlenden Teile hinzufügen, um einen vollständigen Sicherheits-Flow zu erhalten.

## `username` und `password` entgegennehmen

Wir werden **FastAPIs** Sicherheits-Werkzeuge verwenden, um den `username` und das `password` entgegenzunehmen.